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SbBox3f.h
00001 #ifndef COIN_SBBOX3F_H
00002 #define COIN_SBBOX3F_H
00003 
00004 /**************************************************************************\
00005  *
00006  *  This file is part of the Coin 3D visualization library.
00007  *  Copyright (C) by Kongsberg Oil & Gas Technologies.
00008  *
00009  *  This library is free software; you can redistribute it and/or
00010  *  modify it under the terms of the GNU General Public License
00011  *  ("GPL") version 2 as published by the Free Software Foundation.
00012  *  See the file LICENSE.GPL at the root directory of this source
00013  *  distribution for additional information about the GNU GPL.
00014  *
00015  *  For using Coin with software that can not be combined with the GNU
00016  *  GPL, and for taking advantage of the additional benefits of our
00017  *  support services, please contact Kongsberg Oil & Gas Technologies
00018  *  about acquiring a Coin Professional Edition License.
00019  *
00020  *  See http://www.coin3d.org/ for more information.
00021  *
00022  *  Kongsberg Oil & Gas Technologies, Bygdoy Alle 5, 0257 Oslo, NORWAY.
00023  *  http://www.sim.no/  sales@sim.no  coin-support@coin3d.org
00024  *
00025 \**************************************************************************/
00026 
00027 #include <stdio.h>
00028 
00029 #include <Inventor/SbVec3f.h>
00030 
00031 class SbBox3d;
00032 class SbBox3i32;
00033 class SbBox3s;
00034 
00035 class SbMatrix;
00036 
00037 class COIN_DLL_API SbBox3f {
00038 public:
00039   SbBox3f(void) { makeEmpty(); }
00040   SbBox3f(float xmin, float ymin, float zmin, float xmax, float ymax, float zmax)
00041     : minpt(xmin, ymin, zmin), maxpt(xmax, ymax, zmax) { }
00042   SbBox3f(const SbVec3f & minpoint, const SbVec3f & maxpoint)
00043     : minpt(minpoint), maxpt(maxpoint) { }
00044   explicit SbBox3f(const SbBox3d & box) { setBounds(box); }
00045   explicit SbBox3f(const SbBox3s & box) { setBounds(box); }
00046   explicit SbBox3f(const SbBox3i32 & box) { setBounds(box); }
00047 
00048   SbBox3f & setBounds(float xmin, float ymin, float zmin, float xmax, float ymax, float zmax)
00049     { minpt.setValue(xmin, ymin, zmin); maxpt.setValue(xmax, ymax, zmax); return *this; }
00050   SbBox3f & setBounds(const SbVec3f & minpoint, const SbVec3f & maxpoint)
00051     { minpt = minpoint; maxpt = maxpoint; return *this; }
00052   SbBox3f & setBounds(const SbBox3d & box);
00053   SbBox3f & setBounds(const SbBox3s & box);
00054   SbBox3f & setBounds(const SbBox3i32 & box);
00055 
00056   void getBounds(float & xmin, float & ymin, float & zmin, float & xmax, float & ymax, float & zmax) const
00057     { minpt.getValue(xmin, ymin, zmin); maxpt.getValue(xmax, ymax, zmax); }
00058   void getBounds(SbVec3f & minpoint, SbVec3f & maxpoint) const
00059     { minpoint = minpt; maxpoint = maxpt; }
00060 
00061   const SbVec3f & getMin(void) const { return minpt; }
00062   SbVec3f & getMin(void) { return minpt; }
00063   const SbVec3f & getMax(void) const { return maxpt; }
00064   SbVec3f & getMax(void) { return maxpt; }
00065 
00066   void extendBy(const SbVec3f & pt);
00067   void extendBy(const SbBox3f & box);
00068   void transform(const SbMatrix & matrix);
00069   void makeEmpty(void);
00070   SbBool isEmpty(void) const { return maxpt[0] < minpt[0]; }
00071   SbBool hasVolume(void) const
00072     { return ((maxpt[0] > minpt[0]) && (maxpt[1] > minpt[1]) && (maxpt[2] > minpt[2])); }
00073   float getVolume(void) const
00074     { float dx = 0.0f, dy = 0.0f, dz = 0.0f; getSize(dx, dy, dz); return (dx * dy * dz); }
00075 
00076   SbBool intersect(const SbVec3f & pt) const;
00077   SbBool intersect(const SbBox3f & box) const;
00078   SbVec3f getClosestPoint(const SbVec3f & point) const;
00079   SbBool outside(const SbMatrix & mvp, int & cullbits) const;
00080 
00081   SbVec3f getCenter(void) const { return (minpt + maxpt) * 0.5f; }
00082   void getOrigin(float & originX, float & originY, float & originZ) const
00083     { minpt.getValue(originX, originY, originZ); }
00084   void getSize(float & sizeX, float & sizeY, float & sizeZ) const
00085     { if (isEmpty()) { sizeX = sizeY = sizeZ = 0; }
00086       else { sizeX = maxpt[0] - minpt[0]; sizeY = maxpt[1] - minpt[1]; sizeZ = maxpt[2] - minpt[2]; } }
00087 
00088   SbVec3f getSize(void) const {
00089     SbVec3f v;
00090     this->getSize(v[0], v[1], v[2]);
00091     return v;
00092   }
00093   void getSpan(const SbVec3f & dir, float & dmin, float & dmax) const;
00094 
00095   void print(FILE * file) const;
00096 
00097 private:
00098   SbVec3f minpt, maxpt;
00099 
00100 }; // SbBox3f
00101 
00102 COIN_DLL_API inline int operator == (const SbBox3f & b1, const SbBox3f & b2) {
00103   return ((b1.getMin() == b2.getMin()) && (b1.getMax() == b2.getMax()));
00104 }
00105 
00106 COIN_DLL_API inline int operator != (const SbBox3f & b1, const SbBox3f & b2) {
00107   return !(b1 == b2);
00108 }
00109 
00110 #endif // !COIN_SBBOX3F_H

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